A turning drive control unit configured to control driving of the rotation mechanism of a construction machine driven to turn by an electric motor includes a drive command generation part configured to generate a drive command driving the electric motor based on the amount of operation input via the operation part of the construction machine; a rotation speed detection part configured to detect the rotation speed of the electric motor; and a drive command generation part configured to generate a drive command driving the electric motor based on a speed command output from the speed command generation part and the rotation speed detected by the rotation speed detection part. At a time immediately before a rotation stop of the electric motor, the braking torque of the electric motor is limited.


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    Title :

    SWING DRIVE CONTROLLER AND CONSTRUCTION MACHINE INCLUDING THE SAME


    Additional title:

    SCHWENKANTRIEBSTEUERUNG UND BAUMASCHINE DAMIT
    DISPOSITIF DE COMMANDE D'ENTRAÎNEMENT BASCULANT ET ENGIN DE CHANTIER LE COMPRENANT


    Contributors:

    Publication date :

    2018-07-11


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    E02F Baggern , DREDGING / B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / B66C Krane , CRANES / H02P CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS , Steuern oder Regeln von elektrischen Motoren, elektrischen Generatoren, dynamoelektrischen Umformern



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